Silver
Birmingham Water Works Board
Silver occurs naturally in surface and groundwater and can be added to water as a biocide that inhibits growth of bacteria and algae. Increasingly, the use of antimicrobial nano-sized silver particles in consumer products contributes to silver in water sources used for drinking water.
28
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-02-17 | 1402170738-2 | ND |
| 2014-02-17 | 1402170738-1 | ND |
| 2014-02-17 | 1402170738-4 | ND |
| 2014-02-17 | 1402170738-3 | ND |
| 2015-02-10 | 73802102015-2 | ND |
| 2015-02-10 | 73802102015-3 | ND |
| 2015-02-10 | 73802102015-4 | ND |
| 2015-02-10 | 73802102015-1 | ND |
| 2016-02-09 | 738160209-1 | ND |
| 2016-02-09 | 738160209-3 | ND |
| 2016-02-09 | 738160209-4 | ND |
| 2016-02-09 | 738160209-2 | ND |
| 2017-02-14 | 73802142017-4 | ND |
| 2017-02-14 | 73802142017-3 | ND |
| 2017-02-14 | 73802142017-1 | ND |
| 2017-02-14 | 73802142017-2 | ND |
| 2018-08-14 | 2018080915-014 | ND |
| 2018-08-14 | 2018080915-013 | ND |
| 2018-08-14 | 2018080915-016 | ND |
| 2018-08-14 | 2018080915-015 | ND |
| 2019-02-12 | 2019020414-014 | ND |
| 2019-02-12 | 2019020414-016 | ND |
| 2019-02-12 | 2019020414-013 | ND |
| 2019-02-12 | 2019020414-015 | ND |
| 2019-08-13 | 2019080713-014 | ND |
| 2019-08-13 | 2019080713-015 | ND |
| 2019-08-13 | 2019080713-016 | ND |
| 2019-08-13 | 2019080713-013 | ND |